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David Siegel

North America, United States

Description

David Siegel is the Co-Founder and Co-Chairman of Two Sigma. He attended Massachusetts Institute of Technology.

Investor Profile

David Siegel has backed more than 2 startups, with 1 new investments in the last 12 months alone. The firm has led 0 rounds, about 0% of its total and boasts 0 exits across its portfolio.

Investment Focus Highlights

  • Concentrates on Seed, Series A rounds (top funding stages).
  • Majority of deals are located in United States.
  • Strong thematic focus on Artificial Intelligence (AI), Generative AI, Information Technology.

Stage Focus

  • Seed (50%)
  • Series A (50%)

Country Focus

  • United States (50%)

Industry Focus

  • Artificial Intelligence (Ai)
  • Generative Ai
  • Information Technology
  • Machine Learning
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FAQ

Frequently Asked Questions

Learn who this investor regularly partners with—both firms and angels—and explore their latest activity.

Who does David Siegel frequently co-invest with?

Isai
Europe, Ile-de-France, France, Paris
Co-Investments: 1
SP
North America, Massachusetts, United States, Cambridge
Co-Investments: 1
Automattic
North America, California, United States, San Francisco
Co-Investments: 1
Duke Capital Partners
North America, North Carolina, United States, Durham
Co-Investments: 1
Latham & Watkins
North America, California, United States, Los Angeles
Co-Investments: 1
AC
North America, California, United States, Palo Alto
Co-Investments: 1
Capgemini
Europe, Ile-de-France, France, Paris
Co-Investments: 1
Bold Capital Partners
North America, California, United States, Santa Monica
Co-Investments: 1
Breyer Capital
North America, California, United States, Menlo Park
Co-Investments: 1
OSS Capital L.P.
North America, California, United States, San Francisco
Co-Investments: 1

Which angels does David Siegel often collaborate with?

SP
North America, Massachusetts, United States, Boston
Shared Deals: 1
CP
North America, California, United States, San Francisco
Shared Deals: 1
KS
North America, North Carolina, United States, Durham
Shared Deals: 1
NR
North America, California, United States, San Francisco
Shared Deals: 1
MN
North America, Massachusetts, United States, Waltham
Shared Deals: 1
Tobias Lütke
North America, Ontario, Canada, Ottawa
Shared Deals: 1
TP
North America, California, United States, San Francisco
Shared Deals: 1
BY
North America, North Carolina, United States, Raleigh
Shared Deals: 1
SV
North America, California, United States, San Jose
Shared Deals: 1
David Blundin
North America, Massachusetts, United States, Boston
Shared Deals: 1

What are some of recent deals done by David Siegel?

Lumen Bioscience

Seattle, Washington, United States

Lumen Bio discovers, develops, and manufactures biologic drugs and vaccine candidates for various diseases.

BiopharmaBiotechnologyLife Science
Series COct 8, 2025
Amount Raised: $30,000,000

The company specializes in developing AI research agents that streamline knowledge workflows.

Series AMay 14, 2025
Amount Raised: $43,500,000
Liquid AI

Cambridge, Massachusetts, United States

Liquid AI is a developer of AI applications that help improve human experience.

Artificial Intelligence (AI)Generative AIInformation TechnologyMachine Learning
SeedDec 1, 2023
Amount Raised: $37,600,000